A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.
{
"github_reviewed_at": "2026-04-30T17:31:34Z",
"github_reviewed": true,
"severity": "MODERATE",
"nvd_published_at": "2026-04-22T17:16:39Z",
"cwe_ids": [
"CWE-367"
]
}